QUESTION 25 For guided conductive mediums such as UTP (unshielded twisted pair)

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QUESTION 25

For guided conductive mediums such as UTP (unshielded twisted pair) and coaxial cable, thicker conductors (i.e., lower AWG numbers) result in higher data rate capacities being supported.

True

False

QUESTION 26

Select the correct statement(s) regarding UTP.

a. UTP signals are balanced, meaning that one wire transmits the signal, while the other wire is connected to ground

b. All UTP wire pairs within a cable (e.g., Cat 5e) are twisted at exactly the same twist ratio

c. UTP signals are balance, which means that each wire within a pair carries the same signal, but with opposite polarities

d. Crosstalk is never a problem with UTP

QUESTION 27

Coaxial conductors use unbalanced signals, which means that it is less capable than UTP balanced conductors with regards to data rate capacity and attenuation.

True

False

QUESTION 28

Select the correct statement(s) regarding fiber optic cable.

a. The core and cladding within a fiber optic cable must have the same refractive index in order to achieve TIR (Total Internal Reflection)

b. Only single mode fiber (SMF) can be constructed with either a “step” or “graded index” core

c. Mulimode optical fibers (MMF) are vulnerable to modal dispersion

d. All statements are correct

a. UTP signals are balanced, meaning that one wire transmits the signal, while the other wire is connected to ground

b. All UTP wire pairs within a cable (e.g., Cat 5e) are twisted at exactly the same twist ratio

c. UTP signals are balance, which means that each wire within a pair carries the same signal, but with opposite polarities

d. Crosstalk is never a problem with UTP

Explanation / Answer

25: True
Explanation: Thicker wires like UTP, CoAxial cablers result in high rate capacities.

26. Option C: UTP signals are balance, which means that each wire within a pair carries the same signal, but with opposite polarities
Explanation:
In UTP each wire carries the same signal, but with opposite polarities.

27. False:
Coaxial cables are more capable in regards to data capacity and attenuation when compared to UTP cables.

28. Option C:
Mutimode optical fibers (MMF) are vulnerable to modal dispersion.

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